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Injectable debris associated with dental anesthetic delivery
Journal of the American Dental Association (1939)
|April 1, 1984
Summary
Dental anesthetic cartridges may inject foreign matter, including rubber and aluminum debris, into patients. This study identified particles from cartridge diaphragms and needles, with potential health implications still under investigation.
Area of Science:
- Dental materials science
- Medical device contamination
Background:
- Injectable foreign matter is a potential concern in medical procedures.
- Sources of contamination in dental anesthetics require investigation.
Purpose of the Study:
- To identify and characterize foreign particulate matter originating from dental anesthetic cartridges.
- To assess potential sources of contamination within anesthetic delivery systems.
Main Methods:
- Analysis of particles from the diaphragm surfaces and needle lumens of four brands of dental anesthetic cartridges.
- Collection of particles ranging from 30 to 305 microns.
- Examination of 320 cartridges per brand.
Main Results:
- Foreign matter, including rubber and aluminum debris, was identified in dental anesthetic cartridges.
- Particles were found on diaphragm surfaces and within the needle lumen.
- Debris on external needle surfaces may also be introduced during injections.
Conclusions:
- Dental anesthetic cartridges are a potential source of injectable foreign matter.
- Rubber and aluminum debris are likely commonly injected with anesthetic solutions.
- Further research is needed to determine the health implications of this injectable matter.